Error specifying the source of information. [Risolto]

First of all hello, I got following problem I used this link to edit the mintage of serveral coins it worked fine for 4 different coins (2 Euro, 1 Euro, 50 Cent, 10 Cent from Germany) but now it keeps telling me that I sould specify the source of information.
This problem appears at the following coins 1, 2, 5, 20 Cent form Germany. I tryed to edit it serveral times but the error appeared every time. Does someone has a solution to this problem?
Thanks for the help,
helwi

Hello,

You should see a field at the end of the coin edit screen to mention your sources. You should get no error if you copy-paste your link into that field. Could you please try again and let me know if you still face the issue?

I used this field bevor to mention the sources. If tryed it again for all the coins and I still face the issue.

Thank you for your new attempts. I could identify the issue. It's fixed.

Thank you for fixing this problem this quick.